package com.wangsf.hellospringboot.controller;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.*;
import org.thymeleaf.util.StringUtils;

import javax.servlet.http.HttpSession;

@Controller
public class LoginController {

    @PostMapping("/user/login")
    public String login(@RequestParam("username") String username,
                        @RequestParam("password") String password,
                        Model model, HttpSession session){
        //具体业务:
        if (!StringUtils.isEmpty(username) && "123456".equals(password)){
            session.setAttribute("loginUser", username);
            return "redirect:/main.html";
        }else{
            //告诉用户，登陆失败
            model.addAttribute("msg", "用户名或密码错误！");
            return "index";
        }
    }
    @RequestMapping("/user/logout")
    public String logout(HttpSession session){
        session.invalidate();
        return "redirect:/index.html";
    }

}
